I    Handing Quartet Registration Service Agreement

Welcome to use the Quartet logistics service!

In order to smoothly use the Quartet's logistics services, you should read and abide by the "Delivery of Quartet Registration Services Agreement" (hereinafter referred to as "this Agreement"). Please be cautious about reading and fully understanding the terms of each clause, especially the terms of exemption or limitation of liability, jurisdiction and applicable terms of the law, and separate agreements for the opening or use of a service. Restrictions and disclaimers may be bolded or underlined in black and easy to focus on. Unless you have read and accepted all the terms of this agreement, you do not have the right to use the services provided by the Quartet. Your use of the Quartet's services is deemed to be your read and agree to the above agreement.

First, the scope of the agreement

1.1 This agreement is an agreement between you and the sending Quartet regarding users' use of the related services. “Delivering Quartet” means Shenzhen Delivering Four-Party Express Co., Ltd. "User" refers to the user who uses the delivery of the related services and is more commonly referred to as "you" in this Agreement.

1.2 The product brands provided on this website have independent agreements. For detailed items, please refer to the specific agreements of each product.

Second, account and password security

You need to register an account when using this service. Please keep your account and password safe. When you are done using it, you should exit safely. You may be responsible for any hacking or password theft caused by your mishandling.

Third, the way to use this service

3.1 Unless otherwise agreed with the delivery Quartet, you agree that this service is for commercial use only.

3.2 You should use this service by submitting it to or receiving approval from the Quartet. The rights acquired under the terms of this agreement are not transferable.

3.3 You may not use plug-ins, plug-ins, or third-party tools that are not authorized by Quartet to interfere with, disrupt, modify, or exert other influence on the services under this Agreement.

Fourth, providing services according to current situation

You understand and agree that the services of the Quartet are provided in accordance with the current state of the art and conditions that can be achieved. The Quartet will do its utmost to provide you with services to ensure the continuity and security of the services; however, the Quartet can not anticipate and prevent legal, technical and other risks at any time, including but not limited to force majeure, viruses, Trojans, hacker attacks, systems not Service interruptions, data loss, and other losses and risks that may result from stability, government actions, and other reasons.

Fifth, Bring Your Own Device

5.1 You should understand that your use of the Quartet's services requires you to prepare the terminal equipment (such as computers, modems, etc.) associated with the relevant services and to bear the necessary expenses (such as telephone charges, Internet access fees, etc.).

5.2 You understand and agree that the use of this service will consume resources such as your terminal equipment and bandwidth.

Sixth, providing services based on website

6.1 In order to improve the user experience and ensure the quality and security of services and products, it may be possible to maintain and update the service. Before the maintenance, an announcement will be issued. During the maintenance period, the service may be unstable. Please pay more attention to the announcement.

6.2 Malicious attacks are not allowed to hand the Quartet service.

6.3 If a service leak is found, please contact the Quartet in a timely manner and do not spread it freely in public.

Seventh, Secretary, of Confidentiality

7.1 Users should provide true, accurate, up-to-date and complete information in accordance with the registration tips of this site, and update the registration information at any time to ensure that it is true, correct, up-to-date and complete. If the user provides any wrong, false, outdated or incomplete or misleading information, or the Quartet has reason to suspect that the foregoing information is wrong, false, outdated or incomplete or misleading, they are entitled to suspend or Terminate the user's account and reject all or any part of the user's current and future use of the services provided by the Quartet.

7.2 Under normal circumstances, you may view or modify your submitted information at any time, but for security and identification purposes, you may not be able to modify the initial registration information and other verification information provided at the time of registration.

7.3 The Quartet will use reasonable security measures to protect the relevant information that the user has stored. Except the following circumstances, the Quartet will not provide any information of the user to any unrelated third party without prior permission of the user:

  • (1) Disclosure in accordance with relevant national laws and regulations
  • (2) Disclosures according to mandatory requirements of government authorities
  • (3) Disclosures based on explicit user authorization
  • (4) To disclose the legitimate rights and interests of the Quartet or public interest disclosure

7.4 Both parties are obliged to keep confidential information, intelligence, plans, products and other related information in the other party’s business due to this agreement, and shall not disclose to third parties or use other than this agreement without the written consent of the other party. Otherwise, the other party should be compensated for all the economic losses it suffered.

7.5 Delivering incentive policies or cooperation methods to users during the cooperation period, users are not allowed to disclose to third parties.

7.6 The confidentiality obligations of both parties shall not be discharged as a result of the termination of this agreement.

Eighth, Limitation of Liability and Unsecured Guarantees

8.1 If the system of the site crashes or cannot be used due to force majeure or other reasons beyond the control of this site, the online transaction cannot be completed or the relevant information, records, etc. are lost, and the Quartet will not assume any responsibility, but will try its best to assist Aftermath matters.

8.2 The consignment of the parcel has been lost as a result of the user's violation of the relevant laws, regulations or the registration service terms of this site, and the user agrees to bear all the damages caused thereby.

8.3 If the user provides any wrong, false, outdated or incomplete or misleading information, or the Quartet has reason to suspect that the foregoing information is wrong, false, outdated or incomplete or misleading, The loss caused by the user shall be borne by the user and the Quartet shall not bear any related responsibility.

8.4 Unless otherwise stated in writing, the contents, materials, products, information, and services included in this site or provided to users are provided on a "as is" and "as available" basis.

8.5 Except as otherwise stated in writing, Despatch will not make any express or implied representations or warranties regarding the operation of this site or the content, products, information, or services of this site.

8.6 Quartet does not guarantee the contents, products, information, materials, services provided by this site or by other means through this site, and its servers or e-mails and messages sent from this site are free of viruses or other harmful components.

Ninth, Agreement Update

Because of changes in national policies, laws and regulations, or other reasons, it is the right of the Quartet to make changes to this agreement and the content of this website from time to time without notice to the user. If users do not agree with the updated agreement, they may stop using the services provided by the site at any time. Once users continue to use the services provided by this site, they are deemed to have agreed to the updated agreement. Any clause in this agreement is invalid or unenforceable, and does not affect the validity or execution of any other clause than the clause.

Tenth, Law Applicable

This agreement applies to the laws of the People's Republic of China.

Eleventh, the solution to the dispute

If any dispute arises from this agreement, both parties shall resolve it through negotiation. If the negotiation fails, either party has the right to file a lawsuit in the people's court where the parties are located.

II    4PX Privacy Policy

[Read carefully] The Quartet knows the importance of personal information to you, and attaches great importance to the protection of personal information of users. It will take corresponding security protection measures in accordance with laws and regulations and try its best to protect your personal information in a safe and controllable manner before you use it. When delivering the services provided by the Quartet client, Quartet will collect, use, share, store and protect your personal information in accordance with this privacy policy.
This privacy policy contains the terms of the collection, use, sharing, storage and protection of your personal information by Dart Quartet. Dart Quartet hopes that through this privacy policy, you will be clearly introduced to Dart Quartet's handling of your personal information. Therefore, Quartet recommends that before using Quartet's client services, you must read, understand and understand this privacy policy carefully, to help you understand how to maintain your privacy.
In the process of reading this privacy policy, if you have any questions about this privacy policy, you can contact the customer service at Sifang [Contact phone: 0755-23508077 < / a>, contact email: privacy@4px.com ] for inquiries, the Quartet will explain the terms to you; if If you do not agree with this privacy policy or any of the contents, you can refuse to use the Quartet service; if you refuse to provide your personal information while using the Quartet service, you may not be able to use the Quartet service normally.

The purpose of this policy is to help you understand the following:
1.How does Fang Sifang collect your personal information
2.How Fang Sifang uses your personal information
3.How Fang Sifang shares and transfers 、 Disclosure of your personal information
4.How does Fang Sifang store your personal information
5.How does Fang Sifang protect your personal information
6.How do you manage your personal information
7.Dong How Sifang uses Cookies and similar technologies
8.How to protect the personal information of minors
9.How to update this policy
10.How to contact Sifang

1.The definition of terms

1.1 4PX client: Refers to Quartet's official website (domain name is [https://www.4px.com] ) and the service used Programs, systems, applications, websites, clients and corresponding devices.
1.2 4PX: refers to the single or collective name of Quartet's client operator or service provider, including but not limited to Shenzhen 4PX Express Co., Ltd. and its affiliates.
1.3 Personal information: refers to information, content or information recorded electronically or otherwise that can identify the identity of a specific natural person or reflect the activity of a specific natural person, either independently or in combination with other information.
1.4 Unless otherwise agreed, the definitions used in this policy have the same meaning as in the "Delivering Quartet User Agreement".

2.Scope of application

2.1 To provide users with better, better, and more personalized services is the unremitting pursuit of Sifang. Sifang collects, stores, uses, shares, and protects your personal information to provide you with better, better, and more personalized The service also hopes to make your life more convenient through the Quartet service. This privacy policy applies to all services on the client terminal, and you access the client terminal and / or log in to the relevant client to use the services provided by the client terminal, this privacy policy applies. Unless otherwise stipulated in this privacy policy, or if you use a Quartet account or a Quartet related party account to log in to Quartet services without an independent privacy policy, this policy also applies to this part of the service.
2.2 [Special note] This privacy policy does not apply to the services provided to you by the third party. For example, when an enterprise operating a courier service relies on a Quartet client to provide services to you, the personal information provided to the enterprise operating a courier service is not applicable In this privacy policy.
2.3 [European Economic Area (EEA) users] You understand and agree that if the process of processing your personal information during the provision of services to you is applicable to the General Data Protection Regulation (GDPR), the party will Collect, use, share, store, and protect your personal information in accordance with the processing methods agreed in the Privacy Policy (European Version) (URL), please be sure to read, understand and thoroughly understand the Privacy Policy (Europe Version) to help you understand how to maintain your privacy.

3.How the Quartet collects information

3.1 You proactively provide relevant information to the Quartet, including:
3.1.1 When you create a Quartet account, you can choose to fill in and / or submit information according to the different Quartet account creation methods, including your name, avatar, user name to be used, email address, mobile phone number and password of the Quartet account .
3.1.2 When you perform real-name authentication for the Quartet account, you fill in and / or submit the information according to different real-name authentication methods on the page.
3.1.3 When you perform the identity verification or real-person authentication of the Quartet account, you fill in and / or submit the information according to the different identity verification or real-person authentication methods on the page, including your face photo, or record your facial or voice information Video or audio recording of your conversation, or the video or audio recording of your conversation with the Quartet, or the photo of the upper body of your ID card, a copy of the ID card and the identity information (including your name, facial photo, ID number).
3.1.4 When you submit the Quartet account qualification certification, the information you fill in and / or submit according to different qualification certification requirements, including your work unit information, work email address, job information, work organization information, work email address, job information , Qualification documents, a copy of your ID card and its identity information (including your name, ID photo, ID number), your portrait and facial features, etc.
3.1.5 If you are the sender, in order to complete the service or transaction of your choice, the information you fill in and / or submit, including package information (including the name of the product / item contained in the package, value of the product / item / price), The sender's information (including the sender's name, telephone number, and address), and the recipient's information (including the recipient's name, telephone number, and address).
3.1.6 In order to complete the settlement of your chosen service or transaction costs, the information you fill in and / or submit includes, without limitation, your bank account number and the identity information it contains (including your bank account number, name, mobile phone number). 3.2 During your use of the service, Sifangfang will collect relevant information, including:
3.2.1 When you use the service of Fangfangfang or access the Fangfangfang client, Fangfangfang automatically receives and records the information on your browser and computer, including but not limited to your IP address, type of browser, language used, access Date and time, software and hardware characteristics information, and webpage records you require; if you download or use the mobile client, or access mobile webpages to use the service, the mobile device location and mobile device-related information automatically received and recorded by mobile home, including But it is not limited to the device model, device identification code, operating system, resolution, and telecommunications operator. For example: device information, log information, device location information, unique application number, local storage, cookies, or similar technical information during your use of the service.
3.2.2 Di Quartet may also collect other relevant information about you due to reasonable needs for providing services and improving the quality of the service, including relevant information you provided when you contacted Di Quartet's customer service team, and the questionnaire sent to Di Quartet when you participated in the survey Reply information, and related information collected by DSifang when you interact with Dsifang related parties and Dsifang logistics partners. At the same time, in order to improve the security of your use of the services provided by the client of Quartet, in order to more accurately prevent phishing website fraud and Trojan horses, Quartet may understand some of your network usage habits, your commonly used software information, etc. Means to judge the risk of your account, and may record some URLs that the Quartet considers risky.
3.3 The third party forwarded the relevant information provided by the Quartet. In order to provide you with better, better and more personalized services, or to jointly provide services to you, or to prevent Internet fraud, third parties such as Quartet Affiliates, Quartet Logistics Partners, etc. will comply with the law Under the agreement with you or with your consent, your personal information will be shared with the delivery parties, including:
3.3.1 In order to complete the service or transaction you have selected, Di Sifang affiliates or Di Sifang logistics partners will share your personal information with Disi Qufang, including the parcel information contained in the transaction order (including the name of the product / item contained in the package, the product / Item value / price), sender information (including sender name, phone number, address), recipient information (including recipient name, phone number, address).
3.3.2 Information shared by other users or may contain your information. For example: if you are the recipient, the sender in order to complete the transaction or service of their choice reached, fill in the sender and / or submission of information will include your name, phone number, address.

4.The Quartet of how to use the information

4.1 To provide you with the services you use.
4.2 In order to improve the services you use, you get better information to display, search, and serve your individual needs, the Quartet will be based on your browsing and search history, equipment information, location information, order information, pick up your browser and search preferences, habits, location information feature, feature-based label indirect portrait of the crowd, and display, push information and possible commercial advertising. If you do not want to receive commercial delivery of the Quartet to send you, you can unsubscribe or contact Quartet unsubscribe by silently.
4.3 To improve your use Quartet, Quartet of related parties, logistics and delivery of the Quartet partners to provide security services to ensure safe operating environment and identify abnormal account status, to protect you or other users of public safety or personal property from infringement, better prevent phishing sites, fraud, network vulnerabilities, computer viruses, network attacks, network intrusions and other security risks more accurately identify violations of laws and regulations or the Quartet of client-related protocol rules, the Quartet may use or integrate your account information , transaction information, equipment information about network logs, and delivery of the Quartet affiliates, partners access to information laws share your authorization or as applicable, and comprehensive judgment that you Quartet account and transaction risk, authenticate, detect and prevent security incidents, according to the law and to take the necessary recording, auditing, analysis and disposal.
4.4 4PX delivery information might be collected to identification of research, the statistical analysis and forecasting, to improve the delivery of end user content and layout of the Quartet, to provide products or services to support business decisions, and improved delivery of the Quartet of products and services. For example: the use of anonymous data for machine learning algorithm or model training.
4.5 Unless there are mandatory legal retention period requirements, delivery of the Quartet reached only keep your policy within the time limit required for the purpose of this personal information.
4.6 If the Quartet uses the specific information for other purposes not specified in this policy, or if the information collected for the purpose is used for other purposes, your consent will be sought in advance.

5.How do the four parties share, transfer, and disclose information?

5.1 Di Sifang assumes the obligation to keep your personal information confidential and will not sell or rent any of your personal information to third parties for marketing purposes. Di Sifang will only share your personal information with third parties in the following circumstances:
5.1.1 Share your personal information with your prior consent or authorization.
5.1.2 Share your personal information as required by laws and regulations or by administrative or judicial authorities.
5.1.3 Share your personal information with the related parties. In order to facilitate the delivery of services to the Quartet based on the account of the Quartet, recommend information that may be of interest to you, identify the abnormality of the account of the Quartet, and protect the personal and property safety of the party or other users or the public from damage. Your personal information may Will be shared with the related parties. Di Sifang will only share the necessary personal information and is subject to the purposes stated in this privacy policy. If Di Sifang shares your personal information or Di Sifang affiliates change the purpose of using and processing personal information, your authorization will be sought again agree.
5.1.4 In order to provide you with better logistics services, TSI Quartet may delegate to authorize TSI Quartet logistics partners to provide you with logistics services or perform logistics service functions on behalf of TSI Quartet, including but not limited to shipping, checking, dispatching services, Sifang will share your personal information with trusted Quartet logistics partners, and strictly limit the use of your personal information by Quartet logistics partners, so that they can follow Quartet's instructions and follow this privacy policy and any other corresponding Confidentiality and security measures to process your personal information for Quartet.
5.1.5 If you are a qualified complainant of intellectual property rights and have filed a complaint with the Quartet, you should disclose your personal information to the respondent at the request of the respondent, so that both parties can handle possible disputes over rights.
5.1.6 Only by sharing your personal information can you provide the services you need or handle your dispute or dispute with others. For example: if you entrust the delivery of the delivery service through the delivery of the Quartet logistics partner through the delivery of the Quartet post, and the delivery of the information request because the delivery of the delivery contract entrusted by the delivery Quartet logistics partner, the delivery of the delivery information will be provided to the partner Necessary information such as the contact information of the sender / recipient to facilitate the completion of the pickup service.
5.1.7 If you violate the relevant Chinese laws, regulations or relevant agreements or rules of the Quartet, you need to disclose it to a third party.
5.1.8 In order to protect the personal and financial security of Di Sifang, Di Sifang affiliates, Di Sifang logistics partners, you or users or the public.
5.2 The Quartet will not transfer your personal information to any company, organization or individual, except in the following cases:
5.2.1 After obtaining your explicit consent, the Quartet will transfer your personal information to other parties;
5.2.2 In the event of merger, acquisition or bankruptcy liquidation in the service provider of Quartet Quartet, or other situations involving merger, acquisition or bankruptcy liquidation, if the transfer of personal information is involved, Quartet will require new companies and organizations holding your personal information to continue Subject to this policy, the Quartet will require the company, organization, and individual to seek your authorization and consent again.
5.3 Foursquare will only disclose your personal information in the following circumstances:
5.3.1 After obtaining your explicit consent or based on your initiative, the Quartet may disclose your personal information;
5.3.2 If the Quartet determines that you have violated laws and regulations or seriously violated the relevant agreements and rules of the Quartet, or to protect the personal and property safety of you or the users of the Quartet from being violated, the Quartet may comply with laws and regulations or obtain your consent Disclosure of personal information about you, including relevant violations and measures that the Quartet has taken against you.
5.4 If the following situations occur, the Quartet shares, transfers, and discloses your personal information without your prior consent:
5.4.1 Related to national security and national defense security;
5.4.2 Related to public safety, public health, and major public interests;
5.4.3 Related to judicial or administrative law enforcement such as criminal investigation, prosecution, trial and judgment enforcement;
5.4.4 Out of protection of your or other individual's important legal rights and interests, but it is difficult to obtain my consent;
5.4.5 The personal information you disclose to the public;
5.4.6 Collecting personal information from legally disclosed information, such as legal news reports, government information disclosure, etc .;
5.5 According to the law, if the Quartet takes technical measures and other necessary measures to process your personal information, so that the data receiver cannot re-identify a specific individual and cannot be restored, the sharing, transfer, and disclosure of such processed data need not be reported to You notify and obtain your consent;

6.Information storage

6.1 Unless expressly prohibited by your country or the country where you use the Quartet ’s services or the country where you access the Quartet ’s client or where Quartet ’s information is collected, or if you have been explicitly authorized by Or your personal initiative, the personal information legally collected by the Quartet within the territory of the People's Republic of China will be kept in the People's Republic of China. ;
6.2 If you use the Quartet service outside the People's Republic of China, your personal information may be transmitted to your country or the country where you used the Quartet service or the country or region where you visit the Quartet client or the Quartet The country where the information is collected, so that you can successfully use the Quartet service in your country or successfully access the Quartet client in your country. ;

7. Protection of your personal information

7.1 In order to ensure the security of your information, the Quartet strives to take all reasonable physical, electronic and management security measures to protect your information, so that your information will not be leaked, damaged or lost, including but not limited to the HTTPS protocol. Transmission encryption, SSL, information encryption storage, data center access control. The Quartet also strictly manages employees or outsourced personnel who may have access to your information, including but not limited to adopting different authority controls based on different positions, signing confidentiality agreements with them, monitoring their operations, and other measures for security. And privacy protection training. Desifang will provide corresponding security measures to protect your information and provide reasonable security protection according to the existing technology. Desifang will make every effort to prevent your information from being leaked, damaged or lost. The important information systems of the Quartet have passed the assessment of China's national information security level protection, and implemented an information security management system based on the ISO / IEC; 27001 international standard.
7.2 Your account has security protection function, please keep your account and password information properly. The Quartet will ensure that your information is not lost, misused and altered by security measures such as backing up to other servers and encrypting user passwords. Despite the aforementioned security measures, please also understand that there is no "perfect security measures" on the information network. The Quartet recommends that you take positive measures, including but not limited to using complex passwords, changing passwords regularly, and not changing your account Disclose personal information such as passwords to others.
7.3 When using the Quartet service, you must inevitably disclose your personal information, such as contact information or postal address information, to the company or parcel sender / recipient who operates the express delivery business or the actual parcel sender / recipient of the package you entrust , Please protect your personal information and provide it to others only when necessary. If you find that your personal information is leaked, especially your account number and password have been leaked, please contact the Quartet immediately so that the Quartet can take corresponding measures.
7.4 After being informed of the unfortunate occurrence of personal information security incidents, the Quartet will inform you in accordance with the requirements of laws and regulations: the basic situation and possible impact of the security incident, the handling measures that the Quartet has taken or is about to take, and you can prevent and reduce the risks yourself Advice, remedies for you, and more. The Quartet will inform you by email, letter, phone, push notification, etc. When it is difficult to notify the subject of personal information one by one, the Quartet will take a reasonable and effective way to make an announcement. At the same time, the Quartet will also report the handling of personal information security incidents in accordance with the requirements of the regulatory authorities.

8.your personal information management

8.1 Checking and updating your personal information
8.1.1 If you need to check the personal information on your account, you can log in to your account and view "My Personal Information" to find your name, avatar, intended user name, email address, mobile phone number, and delivery information. Quartet account; if you have passed the Quartet account real-name verification, you can also query the information you filled in and / or submitted during the real-name verification as described above; if you have passed the Quartet account verification or real person verification, you can Query the information filled in and / or submitted during identity verification or real person authentication as described above; if you have passed the Quartet account qualification certification, you can also check the qualifications you filled in and / or submitted during qualification certification as described above Certification Information. If you are unable to check your personal information, you can directly contact 4PX.
8.1.2 If there is any change in the information provided during the registration of your account or the use of the service of the client terminal, you can directly log in to the client terminal and view "My Personal Information" to update your personal information. If you are unable to update your personal information, you can directly contact Quartet.
8.2 Deletion of your personal information
8.2.1 If any of the following situations occur, you can submit the Quartet's contact information in accordance with Article 12 of this policy to the Quartet to delete the personal information on your Quartet account. If the actions of the Quartet to process personal information violate laws and regulations; If you hand over your personal information to Quartet without obtaining your explicit consent; If the actions of the Quartet to process personal information seriously violate the agreement with you; If you no longer use the service of Quartet Quartet, or your Quartet Quartet account has been cancelled in accordance with the logout process of Quartet Quartet account; If the Quartet permanently no longer provides you with products or services.
8.2.2 If the Quartet decides to respond to your deletion request, the Quartet will also notify the subjects who obtained your personal information from the Quartet at the same time and ask them to delete them in time (unless otherwise provided by laws or regulations, or these subjects have obtained you independently Authorization).
8.2.3 When you or Quartet assist you in deleting the relevant information, due to applicable laws and security technologies, Quartet may not be able to delete the corresponding information from the backup system immediately. Quartet will securely store your personal information and share it with any further Handle isolation until the backup can be purged or made anonymous.

9.The use of cookies, Internet Beacon and similar technologies

9.1 Cookie
9.1.1 In order to make your access experience easier, when you visit DSifang client or use the service, DSifang may identify you through a small data file. This is to help you avoid the need to repeat the steps of entering account information, or to help Determine your account security. These data files may be cookies, Flash cookies, or other local storage provided by your browser or associated application (collectively "Cookies").
9.1.2 Please understand that some services of Quartet can only be realized through the use of "cookies". If your browser or browser add-on service allows it, you can modify the acceptance of cookies or refuse to send cookies to all parties. You can clear all cookies stored on your computer, and most web browsers have a feature that blocks cookies. But if you do this, you will need to change the user settings yourself every time you visit our website. For more information on how to change your browser settings, please visit the following link: Internet Google Chrome、 Mozilla Firefox、 Safari、 Opera
9.2 Web Beacon web pages often contain some electronic images (called "single pixel" GIF files or "web beacons"). Using web beacons can help websites calculate users who visit the webpage or access certain cookies. The four parties will collect them through the web beacons Information about your browsing activities, such as the address of the page you visited, the address of the previously referenced page you visited, the time you stayed on the page, your browsing environment, and display settings.
9.3 Similar technologies to cookies In addition to cookies, the Quartet also uses other similar technologies such as web beacons, pixel tags, and ETags on websites. For example, the e-mail sent to you by Qisi may contain a link to the address of the content of Qisifang ’s client. If you click the link, Qisifang will track the click to help Qisifang understand your product or service preferences so Yudi Sifang took the initiative to improve the customer service experience. A web beacon is usually a transparent image embedded in a website or email. With the help of the pixel tags in the email, the Quartet can know whether the email is opened. If you do not want your activity to be tracked in this way, you can unsubscribe from the Quotation Mailing List at any time. ETag (Entity Tag) is the HTTP protocol header that is transmitted between the Internet browser and the Internet server. It can replace cookies. ETag can help Quartet avoid unnecessary server load, improve service efficiency, save resources and energy. At the same time, Quartet may use ETag to record your identity so that Quartet can better understand and improve products or services of Quartet. . Most browsers provide users with the function of clearing the browser's cached data. You can clear the data in the browser settings. However, please note that if ETag is disabled, you may not be able to enjoy a relatively better product or service experience.

10.Protection of minors

10.1 The Quartet does not recommend the use of Quartet services for minors. Unless permitted by local law and the consent of the guardian, minors should not register an account or send personal information such as their name, address, telephone, and email address to the delivery party. If you believe that Quartet may inappropriately hold information from or about a minor, please contact Quartet.
10.2 If you are a minor, the Quartet requires you to ask your parents or guardians to read this privacy policy carefully and use the services of the Quartet or provide information to the Quartet with the consent of your parent or guardian. For the collection of minors' personal information with the consent of parents or guardians using the Quartet service, the Quartet will only use, share, transfer or transfer the information if it is permitted by laws and regulations, the parent or guardian expressly agrees or it is necessary to protect the minor. Disclosure.

11. Changes or modifications

11.1 The Quartet may make changes or modifications to this privacy policy from time to time. When the Quartet needs to make changes or amendments to this privacy policy, the Quartet will make an announcement through the Quartet client or announce it in the applicable service; if the privacy policy makes a major change or modification, the Quartet will provide More prominent notifications (including showing you in the form of push notifications and pop-ups at the Quartet client).

12. Contact 4PX

12.1 If you have any questions about this privacy policy in the process of reading this privacy policy, or if you have any questions in the process of fulfilling your rights or obligations based on this privacy policy, you can send it to Sifang Customer Service [Contact Phone: 0755-23508077 Contact email: privacy@4px.com ] Contact the Quartet. The Quartet will review the issues involved as soon as possible and respond within 30 working days after verifying your user identity.
12.2 If any of the following situations occur, according to the requirements of laws and regulations, the Quartet will not be able to respond to your request:
12.2.1 Related to national security and national defense security;
12.2.2 Related to public safety, public health, and major public interests;
12.2.3 Related to crime investigation, prosecution, trial and enforcement of judgments;
12.2.4 There is sufficient evidence to show that the subject of personal information is subjectively malicious or abuses rights;
12.2.5 Responding to your request will result in serious damage to the legal rights of you or other individuals and organizations;
12.2.6 Involving trade secrets.